121221031120030 has 8 divisors (see below), whose sum is σ = 218197856016072. Its totient is φ = 48488412448008.

The previous prime is 121221031120003. The next prime is 121221031120037. The reversal of 121221031120030 is 30021130122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221031120037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061051555992 + ... + 6061051556011.

It is an arithmetic number, because the mean of its divisors is an integer number (27274732002009).

Almost surely, 2^{121221031120030} is an apocalyptic number.

121221031120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221031120030 is a deficient number, since it is larger than the sum of its proper divisors (96976824896042).

121221031120030 is a wasteful number, since it uses less digits than its factorization.

121221031120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122103112010.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121221031120030 its reverse (30021130122121), we get a palindrome (151242161242151).

The spelling of 121221031120030 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, thirty-one million, one hundred twenty thousand, thirty".